Revert "Fix display settings persistence with LRU cache."

This reverts commit 187a8ac9.

Reason for revert: Droidmonitor created revert due to b/422386919. Will be verifying through ABTD before submission.

Bug: 397398590
Fix: 422386919
Change-Id: Ia806c29c8bb240c3c72d876e96a28e34c95be810